Photocatalytic degradation of organic pollutant with nanosized cadmium sulfide

Efficient removal of organic pollutants from wastewater by using photocatalysis has become a hot research in recent days due to its ecological and environmental importance. Herein, cadmium sulfide (CdS) nanostructure with different morphologies i.e. nanoflowers and nanopetals were prepared by a hydrothermal method. The Structural properties of as-synthesized nanostructures material have been studied by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Energy dispersive X-ray spectroscopy (EDX), while UV–Visible spectroscopy have been used to study their optical properties. The photocatalytic activities of the prepared nanostructures have been evaluated by the photocatalytic degradation of organic dye i.e. rhodamine B (RhB). The highest degradation of 78% in CdS nanoflower and 63% in nanopetal for RhB was observed in 4 h. The EIS measurement showed that charge transfer resistance is lower in CdS nanoflower as compare to the nanopetal. The result showed that the CdS nanoflower was more active than nanopetal for photodegradation of RB dye due to more efficient charge transfer. Due to this excellent performance of CdS nanomaterials make it an ideal candidate for various engineering applications in near future. Keywords: Cadmium sulfide, Nanoflowers, Nanopetals, Photocatalytic degradation, Rhodamine